William s



B aresecured springs I), the points of whichpress against the si'desof the part 15, and are so arranged that the space between the knives J will be kept in line with the plane of the ram As the construction and arrangement of the several parts, andthe relation they bear toleach other, will be' readily understood fromlthe above description, andby reference tothe accompanyingdrawings, I will therefore,

without furtherdescriptionof the construction, proceed to describe the operation of my improved stavelmachine.

The timber from which the stave is formed'is placed with oneend between the wings 4 of the feed-ram Al, and the other end arranged so that it will enter between the gnide-rollers.18.4 Power being applied to the-pulley c, the pinion gwill revolve thewhcel h, shaft and vpinion A3. I then press Idown on the lever C1, which 'will` lraise up the arm DI, which will raise np the plumber-block P, which will bring the-pinion A3 intorgear with the rack Az on`the under side of the feed-ram A, and the motion of the pinion A3 will move the vfeed-rain Abferward until the arm u comes in contact with the lever n, and forces it back until the latch Y is drawn from under the latch t of arm' D1, which will allow the arm I)l and plumber-block P to drop down, and thereby unship the pinion A3 fromout of gear with raclrA2 ofthe feed-ram Af, which .will be drawn back by the weight w. y When.

' another piece of timber isiplaced in the machine in the manner before described, the front end of the piece being placed againstthe back end of thetirst piece, the forward motion of, the second piece of timber will force the irstpiece from between the guide-rollers 18 and through and between the knives J'. The circular or convex form of the back pieces K of the knives J will breakiba'ck the shavings and prevent any biting into the stave beyond vthe cutting-edges of tho knives J. The direction of the cutting ofthe knives is controlled by the .operator through the medium of the lever m, andthe timber may he cut away more on one side -than'on the other by simply moving the guide-rollers 18 sideways, through the mediiim of the `screw 2. By pivoting the cutting or yshaving-head at a point which is midway between the knives/J, and on a line with the vertical plane of their cutting-edges, the tendency torside action of the knives is avoided, other than that given themby the operator through the medium of the lever m, for the purpose of causing the knives to follow the curves of the timber from which the stave is formed, for be it observed that any side action of the knives, other` th'an that. given by the operator, is avery great-objection in stave-dressing machines. When the cutting-head is pivoted back-of the cntting-edges of the knives they 'will be very liable to side action when any unsteady action of the stave-timber is brought against them. i

' Now, I ivish it clearly understood that I do not claim broadly pivoting the cutting-head in a stave-dressing machine, for that-is well-known. What I claim as my invention is l 1. The 'arrangement of the arm u, lever n, spi-ing s, lever C1, provided with 'arm D1 and rod fl, plumberblock P, wheel A3, feed-ram A1, and Weight w; constructed, arranged,`rcombined,`and operating as herein described, andfor the purpose set forth. A 4

2. The plumber-block P, provide-d with the universal or `socket-joint Xl, said plumber-block being used .in connection withshaft z', wheel A3, and therack A2 of the feed-ram -A1, as herein described and' for the purpose set forth. I v I 3. Providing' the feedyram Al with wings 4, which are opened or spread 'out by rollers 18, and contracted by the slides B2, as herein described and set forth. i

4. Pivoting the dressing-head ofv a stave-,machine on a line with the vertical plane'of the cutting-edges of the knives, the whole being constructed, arranged, and operating as herein described and for the purpose set forth.

W. S. COLWELL.

Witnesses:

A. C. JonNsroN, JAMEs J. JonNsToN. 

